Bell Work
Using the following graph, determine
the ordered pairs of each point.
SPI 4.3 Solve problems involving the
distance between points or midpoint
of a segment.
B
A
Distance and Midpoint
C
D
Agenda:
1. Midpoint Formula
~ Find the midpoint between 2 points
E
~ Find an endpoint given 1 endpoint and the
F
midpoint
2. Distance Formula
~ Find the distance between 2 points
Dec 7­12:20 PM
Midpoint
The point that lies directly halfway
between the two endpoints.
Oct 10­9:53 AM
Find the midpoint of the two points.
(7, 1) and (-3, 1)
Formula
Dec 7­12:20 PM
Find the midpoint of the two points.
Dec 7­12:20 PM
TRY!!!
TRY!!!
Find the midpoint of the two points.
(5, -2) and (9, -8)
(5, -14) and (2, 21)
Find the midpoint of the two points.
(6, 25) and (-7, 9)
Dec 7­12:20 PM
Dec 7­12:20 PM
1
Find the missing Endpoint
Find the missing Endpoint
Midpoint: (-2, -4) Endpoint: (-4, -12)
Midpoint: (8, 3) Endpoint: (7, 4)
2
Dec 7­12:20 PM
TRY!!!
Find the missing Endpoint
Dec 7­12:20 PM
TRY!!!
Distance Formula
1. Midpoint: (2, 9) Endpoint: (-1, 9)
2. Midpoint: (-7, -11) Endpoint: (2, -11)
2 2
Dec 7­12:20 PM
Dec 7­12:20 PM
Find the distance between the pair of points
Find the distance between the pair of points
(1, 2) and (-3, 0)
(2, 3) and (-4, 6)
Dec 7­12:20 PM
Dec 7­12:20 PM
2
Find the distance between the pair of points
1. (6, 8) and (3, 4)
Find the midpoint and distance
of the two points.
A
2. (9, -2) and (3, -6)
B
TRY!!!
TRY!!!
Dec 7­12:20 PM
Dec 7­12:20 PM
Find the midpoint and distance
of the two points.
1. Each member in the group will get 3 pieces. On the
back of you piece write you name.
2. Each member will work out the problems on a
separate sheet of paper. This will be turned in with the
completed product.
3. Each member needs to check each other to check for
mistakes.
4. Once everyone has finished, the pieces will fit
together like a puzzle. This means that the sides must
match.
5. Now it is time to glue the final product!
B
A
TRY!!!
Group Activity: Midpoint and Distance 3 x 3
TRY!!!
Dec 7­12:20 PM
Dec 7­12:20 PM
Practice and Apply
Worksheet
SPI 4.3
Midpoint and Distance
Dec 7­12:20 PM
3